Thanks for all the suggestions and pointers! I also had the F60 error, and none of the resets resolved the issue. Looking at the PCB, there were clearly 3 bad and one questionable capacitors. I got replacements from Mousers, and was able to remove and solder in the new ones. Unit now works perfectly! I never soldered components on PCB boards before, so this was a first. Honestly, removing the bad components was harder than soldering in the new ones. BTW, i bought an inexpensive soldering kit (for about $20) that included the soldering iron, solder, tweezers, stand, grounding wrist strap, multiple tips; the parts cost $7.50; found a couple of excellent youtube videos on how to solder components on PCB. Took a couple hours all together. Replacing the DMR-ES40V would have cost about $300.